baber/WOPTO huggingface dataset:
Patent GB-1027502-A (GB)
Title: Improvements in or relating to the moulding of articles made of plastic foam with plastic sheath
IPC: B29C33/40
Filed: 1963-01-23
Abstract: 1,027,502. Moulding polyurethane. S. A. CEMPO. Jan. 23, 1963 [Jan. 26, 1962], No. 2957/63. Heading B5A. In a process for moulding articles of polyurethane foam having a skin of polyurethane, the mould is made of a material having a heat conductivity less than 5À10<SP>-3</SP> (g. cal./sec.) (sq. cm.) (‹ C./cm.) and a specific heat higher than 0À1 cal./cm.<SP>3</SP> in the temperature range of 15‹ C. to 16‹ C. The liquid or paste to form the skin may be applied to the mould surface by spraying, brushing or rotational casting. The mould may be made of a resin, e.g. a flexible synthetic elastomer and supported in a plastics or metallic cradle. The constituents of the skin-forming polyurethane mixture may be mixed in a mixer head or applied from separate spray guns. The mould may be passed through an oven for setting of the resin. If a thin-walled mould is used the space between the mould and the cradle is filled with a low heat conductivity material, e.g. polyurethane. The mould surface may be cooled by a blast of air before receiving the skin-forming material and the skin may be similarly cooled before deposition of the foam material. The process may involve external heating of the mould.
Patent GB-1253991-A (GB)
Title: Improvements in nuclear reactor installations
Inventor: JONES DESMOND HECTOR
IPC: G21C13/02
Filed: 1968-04-05
Abstract: 1,253,991. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 1 April, 1969 [5 April, 1968; 17 Jan., 1969], Nos. 16644/68 and 2981/69. Heading G6C. In a nuclear reactor installation having a water pond 2, mounted above the reactor 1, the tubes 3, containing nuclear fuel, may be refuelled through the tube extensions 6. The latter extend from the base of the pond 2, to the upper end of tubes 3, to which they are joined at the sliding seal 7. Coolant leaves the tubes 3, by the branches 4 and the spherical plug valve 8 is actuated during refuelling.
Patent GB-845643-A (GB)
Title: Improvements in or relating to agricultural appliances
IPC: A01G3/04
Filed: 1958-01-29
Abstract: 845,643. Hedgecutters. TEAGLE, W. T. April 29, 1959 [Jan. 29, 1958], No. 3002/58. Class 6(2). A hedgecutter comprises a supporting frame 9 mounted on a tractor and rocked about a horizontal axis by one arm 14 of the tractor hydraulic lift, a laterally extending boom 39 mounted on the frame and a work-head mounted on the boom. As shown the boom is pivotally mounted on the frame and is prevented from moving by a spring controlled keeper 45 which is capable of yielding to permit the boom to swing rearwardly on meeting an obstruction, an abutment 59 being provided to limit the rear-ward movement of the boom. The workhead includes reciprocating cutters which are driven by belt gearing from a tractor power shaft 32.
Patent GB-721688-A (GB)
Title: Improvements relating to acrylonitrile polymerization products
IPC: C08G59/32
Filed: 1952-02-05
Abstract: Fibres are made from aminated copolymers of acrylonitrile and ethylenically unsaturated aliphatic epoxy compounds and optionally other copolymerizable monomers, and then dyed with acid dyestuffs. Specifications 695,449, [Group IV (a)], and 719,087 are referred to.ALSO:Copolymers of acrylonitrile and one or more ethylenically unsaturated aliphatic epoxy compounds are aminated with ammonia or amines, such as monomethylamine, monoethylamine, monopropylamine, monobutylamine, dimethylamine, diethylamine, dipropylamine, dimethylaminopropylamine, morpholine, ethylenediamine, 1,3 - diaminopropane, 1,3 - bis - ethylaminobutane, diethylenetriamine, tetraethylenepentamine, aniline, and o -, m -, and p-toluidines. Unsaturated epoxy compounds specified are glycidyl acrylate, methacrylate, and crotonate, diglycidyl fumarate, maleate, itaconate, citraconate and mesaconate, triglycidyl aconitate, glycidyl allyl, glycidyl methallyl, and glycidyl crotyl ethers, and butadiene monoxide. The copolymers may also contain other copolymerizable monomers such as vinyl acetate, propionate, butyrate, isobutyrate, valerate, acrylate, and methacrylate, styrene, dialkyl styrenes, isopropenyl toluene, the ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, amyl, hexyl, heptyl, octyl, decyl, and dodecyl esters of acrylic, methacrylic, ethacrylic, and phenyl acrylic acids, methacrylonitrile, ethacrylonitrile, phenylacrylonitrile, methacrylamide, ethacrylamide, propacrylamide, phenylacrylamide, N-methylol acrylamide, and the N-monomethyl, N-monoethyl, N-monopropyl, N-monobutyl, N-dimethyl, N-diethyl, N-dipropyl, N-dibutyl, N-monophenyl, and N-diphenyl acrylamides and methacrylamides.  The copolymers are aminated, preferably at a temperature of 0-120 DEG  C. in the presence or absence of diluents such as water and dimethyl formamide, either before or after shaping into forms such as films or fibres.  The amination reaction introduces hydroxyamino groups into the copolymers which render them susceptible to dyeing, particularly with acid dyestuffs.  The copolymers may be prepared by bulk, solution, or bead polymerization techniques with the aid of heat and/or light; the preparation is described of a copolymer of acrylonitrile and glycidyl methacrylate in an aqueous medium of pH of 3.1 with the aid of a mixture of ammonium persulphate and sodium metabisulphite as a catalyst.  The aminated copolymers may be used in the manufacture of films, fibres and mouldings. Specifications 695,449 and 719,087, [Group IV (c)], are referred to.
Patent GB-212703-A (GB)
Title: Improvements in or relating to land, garden and like rollers
IPC: A01B29/02
Filed: 1923-02-01
Abstract: 212,703. Hodgkinson, E. B., and Brown, C. A. Feb. 1, 1923, Wheel-scrapers on vehicles.-A cleaning- device for rollers comprises a rotary brush or its equivalent arranged in contact with the roller and driven from a secondary roller rotated by contact with the main roller. The device may consist of a spindle or body furnished with bristles, wires, &c. to brush the roller, or with cloth &c. to wipe or rub it. The bristles may be arranged in spiral lines to conduct the material brushed off to one or both sides of the roller. A cylindrical brush 10, Fig. 2, may be mounted in bearings 5 adjustably supported on brackets 1 fastened to the handle frame 2. The brush is connected by a driving-belt 14 with a friction roller 13 similarly mounted on the brackets 1 and engaging with the roller 3. Two friction rollers may be substituted for the roller 13. In the modification shown in Fig. 5, the bearings 5 are carried by hinged members 19 connected, with adjustable springs 21. According to the Provisional Specification the brush may be driven by gearing from the axle side. of the roller 3.
Patent GB-1049693-A (GB)
Title: Reciprocating pump with provision for free throughflow
IPC: F04B49/24
Filed: 1964-01-23
Abstract: 1,049,693. Reciprocating pumps. J. KRAUS. Jan. 23, 1964 [Jan. 28, 1963], No. 3030/64. Heading F1A. [Also in Division E1] In a bucket type pump, the upper end of the bucket is formed as a handle 7a and an inlet valve 12 is located therein. The bucket 7 slides over a trailing member 13 to which is secured an outlet valve member 14 and has a collar 13b formed at its upper end. This end has axial slits 13a which allow the collar 13b to be sprung into grooves 7b, 7c in the bucket. When the handle 7a is raised, the member 13 will be lifted until a valve 14 is closed whereupon the collar 13 springs out of the groove 7c and as the bucket rises liquid will be drawn into the cylinder 1. At the end of the stroke, the collar 13 springs into the groove 7b and the bottom of the bucket 7 is in contact with an abutment 13c. On the downward stroke the valve 14 is opened and when an abutment 13g contacts the end face 2 of the cylinder, the collar 13 springs out of the groove 7b, the inlet valve 12 closes and liquid is discharged from the cylinder. Alternatively the handle may be held so that both inlet and outlet valves are open and liquid is siphoned from a higher to a lower container.
Patent GB-1492611-A (GB)
Title: Vehicle wheel disc brakes
IPC: F16D66/02
Filed: 1974-01-23
Abstract: 1492611 Brake pad wear indicator; reducing brake squeal GIRLING Ltd 21 Jan 1975 [23 Jan 1974 27 June 1974] 03071/74 and 28669/74 Heading F2E An audible warning of predetermined brake pad wear is provided by the engagement of a projection 9 or 24 of a wheel 10 or a rotary brake disc 2 with a head portion 8c, 20c or 22c of a device releasably mounted on a pad assembly 3 of an hydraulic disc brake assembly. The device 8 comprises a shim portion 8a, which reduces brake squeal, shaped to fit over the backing plate 5 and located in use between the backing plate 5 and its actuating piston 6 or caliper abutment.
Patent GB-708470-A (GB)
Title: An arrangement for guiding push rods for the control of healds in weaving looms
IPC: D03D37/00
Filed: 1952-02-06
Abstract: 708,470. Looms. COMPTOIR LINIER, and LATIEULE, Y. Feb. 6,. 1952 [Nov. 8, 1951], No. 3187/52. Drawings to Specification. Class 142(2) In a loom in which the healds are mounted on bars carried by rods of circular section which are actuated by a cam, each rod has a fork fixed on it bearing against an adjacent rod so as to prevent the first rod turning about its own axis.
Patent GB-549264-A (GB)
Title: Improvements in lighting means for improving visibility in fog
IPC: F21S8/10
Filed: 1941-03-11
Abstract: 549,264. Lamps; liquid prisms. SWITCHGEAR & COWANS, Ltd., and MAXWELL, A. V. March 11, 1941, No. 3314. [Class 97 (i)] [Also in Group XI] Lighting means for obtaining increased visibility in fog comprises a hollow 90 degrees prism a filled with a highly refractive liquid, and means, such as a lamp d and reflector e, for projecting a light beam through one face thereof on to its hypotenuse face c, the face c being silvered or otherwise made highly reflective. The prism may have glass or plastic faces and ends of metal or other material, and may be filled with nitrobenzene and sealed. The lamp may be a cadmium electric bulb or a coloured bulb.
Patent GB-620955-A (GB)
Title: Grain turning machine
IPC: C12C1/15
Filed: 1947-02-04
Abstract: 620,955. Grain turners. BURTON, F. G. M. Feb. 4, 1947, No. 3324. [Class 86] In a machine for turning grain comprising a carriage having front and rear wheels and a plurality of grain turning paddles, one set of wheels only is driven so that by tilting the carriage on to the non-driven wheels, the carriage may be brought to a standstill. The carriage consists of an inverted U-shaped frame A supported on wheels B, C. An electric motor 3 mounted on the carriage drives the paddles G and also the wheels C. The blades G are mounted on a horizontal shaft F, one set of blades being provided at each end of the shaft F outside the uprights of the carriage and three sets between them. Floating skids 40 prevent grain being crushed under the wheels B, C. A handlebar D pivoted to the frame is used for steering the carriage and also for tilting the machine so that the driven wheels C are brought out of contact with the ground and the movement of the carriage stopped, although the paddles continue to rotate. An air compresser and heater may be mounted on the carriage, and hot air blown on to the grain by means of a holed pipe 32. The handlebar D may operate a switch in the motor circuit to stop the motor.
Patent GB-914570-A (GB)
Title: Improvements in or relating to sweat cooled articles
Inventor: MCLAUCHLAN JAMES CHARLES
IPC: F01D25/12
Filed: 1958-01-31
Abstract: 914,570. Rocket motors. AVIATION, MINISTER OF. Jan. 13, 1959 [Jan. 31, 1958], No. 3359/58. Class 9 (2). [Also in Groups XII and XXVI] The combustion chamber of a jet reaction rocket or the surface of a missile is cooled by the evaporation of a volatile cooling fluid, the vapour from which is urged through a porous wall by its own pressure. The rate of cooling is self regulating in that the rate of vapour flow is proportional to the heating of the surface concerned. The rocket combustion chamber is formed with double walls, the inner one of which is porous and between which the cooling fluid is stored. The fluid is vaporized by the chamber heat and the wall is cooled by the vapour forced inwards through the porous structure. In a rocket motor the pressure varies with axial position and the coolant space is therefore divided into annular zones, each of which supplies coolant separately. The missile surface is also double walled to contain the cooling fluid; the outer wall being porous and cooled by the outflow of vapour produced from the fluid by heating at the outer surface. The cooling fluids may be ether, ethyl alcohol, methyl alcohol or water, and may be stored in the device, before heating occurs, by sealing the porous portion with wax.
Patent GB-545594-A (GB)
Title: Improvements in and apparatus for the liquid treatment of yarn and the like
IPC: D06B1/14
Filed: 1941-03-12
Abstract: 545,594. Coating yarn &c. AMERICAN VISCOSE CORPORATION. March 12, 1941, No. 3369. Convention date, Oct. 18, 1940. [Class 140] For applying liquid to yarn or the like 4 the yarn is fed in contact with a roller 1 the periphery of which is grooved and the groove formed with transverse ridges, the roller dipping into liquid. The roller may be driven.
Patent GB-209313-A (GB)
Title: Improvements in incubators
IPC: A01K41/00
Filed: 1923-02-05
Abstract: 209,313. White, A. J. Feb. 5, 1923. Hatching-appliances.-An incubator comprises an air-heating chamber a above which are placed superposed separate elements 1 - - 5 containing egg-trays h, to which passes a regulated supply of hot air from the heater. The air heated bv n. circuitous flue f enters spaces g<1> between the walls of the elements 1 - - 5, dampers j raised and lowered by rack and pinion gear k controlling the entrance of hot air to the trays h. Cold air inlets r beneath the trays, and outlets s for vitiated air are provided below and above glazed doors p.
Patent GB-1256444-A (GB)
Title: Conformable elastic adhesive tape
IPC: C09J7/21
Filed: 1970-01-23
Abstract: 1,256,444. Adhesive tape. KENDALL CO. 23 Jan., 1970 [11 Feb., 1969], No. 3459/70. Heading B2E. [Also in Division D1] A conformable elastic tape comprises a woven backing weighing 100-300 g/yd<SP>2</SP> when relaxed incorporating warp yarns which have elastomeric cores and which occur once in every three to six warp yarns, said backing being coated with a pressure sensitive adhesive, e.g. a rosin tackified rubber. The adhesive coating may be perforated in order that the tape may be air permeable. The relaxed tape has a non planar surface which may be in the form of transversely extending valleys and ridges and may be capable of being stretched to more than -135% of its relaxed length. The yarns having the elastomeric cores may be corespun or a wrapped core and said core may be spandex or natural or synthetic rubber of 40- 140 denier with a covering of rayon, cotton or nylon. The other warp yarns may be stretch nylon, glass fibre or rayon. The filler yarns are suitably cotton or rayon. The warp yarns are preferably equivalent to cotton 10's to 120's and the filler yarns to cotton 4's to 30's. The backing may be woven with 18-40 ends/inch and 14-32 picks/inch. The warp yarns may be floated on the face to be coated with adhesive. The tape can be made by weaving the backing with the core yarns in partially stretched condition and the other warp yarns under normal tension, coating the fabric in the fully stretched condition with the adhesive and applying heat to the tape under slack conditions in order to permit relaxation. A release coating, e.g. polyethylene may be applied to the uncoated backing or to the tape by means of a reverse roll spreader. The release coating may be confined to the raised areas of the tape.
Patent GB-411593-A (GB)
Title: Improvements in or relating to printing presses or machines for printing labels and the like
IPC: B41K3/48
Filed: 1933-02-04
Abstract: 411,593. Typewriters &c. MATTHIESEN, B., 28, Kaiser-Wilhelmstrasse, Brunswick, Germany. Feb. 4, 1933, No. 3461. Convention date, Feb. 4, 1932. [Class 100 (iv).] Type-wheel machines web-cutting arrangements.-In a machine for printing labels in strip-form, and severing the labels from the strip, the strip is fed through the machine by pawl-like members, one at least of which engages or seizes the strip at the centre of one of the labels so as to advance the labels in turn to the centre of the printing-mechanism irrespective of the width of the label, and the severing-mechanism is capable of adjustment relatively to the printing-mechanism according to the width of the labels. Beneath the printing- mechanism, which consists of adjustable type-wheels 3, is a stripsupporting bed 34 slotted to allow spring-controlled pawls 43, 63 carried by a horizontally-reciprocating bar 42 to engage the strip. The pawls are so situated that the pawl 63 operates by engaging a hole provided at the centre of each label for this purpose, and the pawl 43 operates by engaging perforations in label strips previously perforated between each pair of labels and not requiring to be severed. Beyond the last printing-device is arranged the severing - mechanism which consists of a fixed blade 66 and an oscillating blade 65 pivoted thereto. The blade 66 is supported on a rod 64 to which it is locked in any required position of adjustment by the engagement of a spring-pressed pin 67 on the blade with one of a series of notches 68 in the rod 64. The outer end 74 of the oscillating blade 65 is slotted to engage slidably a frame 75 connected to and verticallyreciprocated with the printing-mechanisms. Transverse members 27 on the type-wheel frame 7 are pressed upwardly by springs 29 in sleeves 28 and are depressed by gear-driven cams 77 which engage rollers 78 on pins 79 fixed to the members 27. A bent lever 87, having its ends held by a spring 88 in engagement with the pins 79 and a pin 89 on one of the driving-gears 83, controls the movement of the members 27. When the labels have flanged ends for fastening purposes, the ends hang over the side of the bed 34 during their passage through the machine, but for flat gummed labels, a member 52 controlled by a spring 53 is moved into position by a finger-piece 54 to extend the surface of the bed laterally. Roller inking-arrangements.-The types are inked by a pad 99 rotatably mounted on the end of a lever 97 oscillated so as to move the pad beneath the types between each printing operation. A ratchet-wheel 100 is fixed to the pivot of the pad and is engaged by a pawl 102 on a rocking-lever 101 which abuts against a fixed stop 104 at each oscillation of the lever 97 so as to rotate the pad 99 and cause a fresh part thereof to be presented to the types at each inking operation.
Patent GB-836439-A (GB)
Title: Improvements relating to the automatic regulation of the rate of flow of a fluid through a pipe or the like
IPC: G05D7/01
Filed: 1956-11-22
Abstract: 836,439. Valves. BUTCHER, K. L., and COTTELL, E. C. Nov. 21, 1957 [Nov. 22, 1956], No. 35703/56. Class 135. An apparatus for automatically regulating the rate of a fluid flow includes a valve housing 1 accommodating a vertically arranged double beat mushroom valve 12, 13, balanced by being exposed on both sides to the pressure of the fluid passing through the valve, which is actuated by a device responsive to a pressure differential, comprising a cylindrical valve actuating member 26, 27, axially movable within a sleeve member 14 having an upwardly-diverging tapered bore, and which is arranged to be lifted by an amount proportional to the rate of fluid flow through the variable restriction formed between the valve-actuating member and the sleeve. The desired flow rate may be adjusted by means of a manually-operated screwed spindle 17, rotation of which alters the axial position of sleeve 14; further adjustment is obtained by altering the mass of part 26. In a modification the pressure differential sensitive device is positioned downstream of the valve member. Specification 738,773 is referred to.
Patent GB-547393-A (GB)
Title: Improvements in temperature control devices for refrigerators
IPC: F25B49/02
Filed: 1942-03-18
Abstract: 547,393. Articles made of synthetic resins. BRITISH THOMSON-HOUSTON CO., Ltd. March 18, 1942, No. 3581. Convention date, March 20, 1941. [Class 2 (iii)] [Also in Group XXXVII] The thermally responsive element, shown as a fluid contain ing bellows 10, controlling the switching of a compressor motor in a refrigerator, is enclosed in an open ended flexible sheath 18 of electrically insulating material The sheath is shown as clamped between a flange or a metal cap 32, to which the pipe leading from the bulb is secured, and the outside of the switch casing the bellows 10 acting as a switch operating arm through the closed end 30 of the sheath, so that the thermal element is effectively electrically insulated from all live parts of the switch and is moisture-proof. The sheath may be made of an equal mixture, by weight, of polyvinylchloride and tricresyl phosphate. The snap-action switch mechanism described is that in Specification 529,741, [Group XXXVII].
Patent GB-220561-A (GB)
Title: Improvements in or relating to apparatus for annealing glassware
IPC: C03B25/06
Filed: 1924-02-12
Abstract: 220,561. Hartford-Empire Co., (Assignees of Mulholland, V.). Sept. 10, 1923. [Convention date]. Tunnel annealing furnaces; charging and discharging; walls; roofs; indicators. - A tunnel leer for annealing glassware comprises a channel-shaped structure with a roof made vertically adjustable for altering the cross-sectional area of the tunnel. The leer comprises an inlet end 6, a number of intermediate sections 21, and an outlet end 20. Each section 21 is formed of a hollow channel of thin metal packed with heat insulating material 19, and has a hollow roof, also packed with heat-insulating material, vertically adjustable by hand nuts 28 engaging bolts 26 fixed to the roof. The bolts are of such a length that the height inside. the leer is indicated by the length of bolt projecting through the nut. The ware is moved through the. leer on thin endless conveyer chains 35 passing over sprockets 37, 46 driven from a motor 38, the lower strands of the chains being enclosed in a. thin casing 45. At the outer end of the leer is a fan 57 forcing air to a wind-box 59 and through nozzles 61. which direct the air through the leer in a direction opposite to that of the ware. Deflecting plates 30, 52 are arranged at the ends of the movable tops so that air may be led up flues 31, 53. In operation, the ware is fed from the moulds to the conveyer at the entrance end 6, the roof of the leer being adjusted for height, and the plates 30, 52 and dampers 54. 32 being adjusted to enable the requisite, air current to be passed through the leer so that heat from the ware will maintain the entrance end hot, the temperature-gradient to the outlet end being regulated by the air blast. The sections of the leer are provided with expansion joints and the inner plates are of polished heat reflecting metal. For heating the leer initially the receiving end 6 may be surrounded by a heating jacket, or a burner 62 heating the moving chain may be used.